A transverse mode of electromagnetic radiation is a particular electromagnetic field pattern of the radiation in the plane perpendicular (i.e., transverse) to the radiation's propagation direction.

Yes, your pictures are the idealised image of a spot you would see if your beam consisted of a single TEM mode. The index is the number of zeros of the EM field as you go along x x or y y. Hence TEM00 mode is a single bump (no zeros), TEM01 is a single bump along x x and two bumps (with a zero in between) along y y, etc. frequency m m n n q q.

1978年9月1日 · We point out in this paper that a TEM ∗01 mode laser beam is convenient to stably levitate either solid or hollow dielectric spheres or metallic ones. Except a sufficient incident flux, there is no stability condition required to levitate solid transparent spheres having a refractive index larger than the one of the surrounding medium.

The mode, TEM 01 *, also known as the "bagel" or "doughnut" mode, is considered to be a superposition of the Hermite-Gaussian TEM 10 and TEM 01 modes, locked in phase quadrature.

2010年8月4日 · For He-Ne lasers, TEM01 is called donut-moding as the beam looks like a donut hole. it looks like a light beam with a dark spot in the middle. This is caused by destructive interference in the middle of the beam. It is especially bad when trying to make holograms. You must log in or register to reply here.

用中心波长为850 nm, 重复频率为76 MHz, 脉宽为130 fs的飞秒脉冲光产生二次谐波, 泵浦TEM01模的同步光学参量振荡器, 实验上获得了TEM01模大约4倍的经典增益, 并给出了理论分析。这是产生高阶模飞秒脉冲光非经典频率梳的重要步骤, 理论预计该增益下可以得到-2 20 dB的TEM01模脉冲 …

Transverse Electro-Magnetic (TEM) Modes describe the shape of energy distribution in the beam cross section. Figure 4.7 show the energy distribution of the first few transverse electromagnetic modes.

The properties of TEM01* doughnut modes have been examined by frequency analysis and by two-beam interference. Interpretation in terms of an evolving helix, made up to two orthogonal TEM01 modes of different frequency, is supported by computer simulation of fringe patterns.

A dual-wavelength T E M 01 mode synchronous continuous wave passively mode-locked (CWML) Nd:YAG laser has been demonstrated for the first time to the best of our knowledge with a semiconductor saturable absorber mirror (SESAM) at 1319 and 1338 nm.

Experimental near-field intensity distributions that emerge from a Nd:YAG laser in which two DPEs were incorporated to obtain two orthogonally polarized TEM01modes. a Vertically polarized TEM01 mode; b horizontally polarized x TEM01 y mode. refringent crystal was introduced instead of the po-larizing beam splitter, was exploited.